MH Connectors Zinc Nickel Plated Hoods, Rapid Assembly,Metalized Inserts MHDTZK-RA-HI SeriesA range of Zinc, Nickel Plated D-sub Hoods from MH Connectors. These Rapid Assembly Backshells have 360° EMI shielding through the use of a set of metallized Compression Inserts for cables up to 9 mm Outside Diameter. Full metal UNC 4-40 threaded Jackscrews are supplied with these Rapid Assembly, 360° EMI shielding D-sub Backshell Hoods.